http://imagej.273.s1.nabble.com/Plugins-that-don-t-run-from-Compile-and-Run-tp3693072p3693073.html
> I am hoping to make a modified version of HyperStackReducer, a plugin
> that is bundled with and installed in the current version of ImagJ.
>
> When I find the source code at
>
http://rsb.info.nih.gov/ij/docs/source/ij/plugin/
> HyperStackReducer.java.html and copy the code and save it in a file
> called HyperStackReducer.java,
> I get no errors, but nothing happens.
>
> Running the same plugin from the Image>Hyperstacks>Reduce
> Dimensionality... menu, however, it works exactly as expected from the
> code.
>
> The opening lines of the plugin are:
>
> package ij.plugin;
> import ij.*;
> import ij.gui.*;
> import ij.process.*;
> import ij.measure.Calibration;
> import java.awt.*;
> import java.util.Vector;
>
> /** Implements the Image/HyperStacks/Reduce Dimensionality command. */
> public class HyperStackReducer implements PlugIn, DialogListener {
> ImagePlus imp;
> int channels1, slices1, frames1;
> int channels2, slices2, frames2;
> double imageSize;
> static boolean keep = true;
> /** Default constructor */
> public HyperStackReducer() {
> }
>
> /** Constructs a HyperStackReducer using the specified source
> image. */
> public HyperStackReducer(ImagePlus imp) {
> this.imp = imp;
> }
>
> public void run(String arg) {
> imp = IJ.getImage();
> if (!(imp.isHyperStack() || imp.isComposite())) {
> IJ.error("Reducer", "HyperStack required");
> return;
> }
> int width = imp.getWidth();
> .
> .
> .
>
> I have tried a few variations to the code including
> public void run(String arg) {
> imp = ij.WindowManager.getCurrentImage();
> ...
> but get the same result.
> It seems that the plugin is not even executing, because running it
> from the installed menu command gives an error if there is no image
> open or if the current image is not of the correct type. My efforts
> with "Compile and Run..." don't even give the errors in such
> situations.
>
> Am I un aware or forgetting some magic that's needed to get a plugin
> to execute on the current image? I am still quite new to java code,
> but I can't find what I'm missing. Are the constructors the problem?
>
> Thanks for any help!
> Bill
>
>
> --
> William A. Mohler
> Associate Professor
> Dept. of Genetics and Developmental Biology
> University of Connecticut Health Center
> MC-3301
> 263 Farmington Ave.
> Farmington, CT 06030-3301
>
>
[hidden email]
> Mobile: (860) 985-2719
> alt. mobile: (860) 331-8514
> skype: wmohler
>
> Office: (860) 679-1833, room E2029
> Lab: (860) 679-1834, room E2032
> Fax: (314) 689-1833
>
> G&DB dept. ofc.: (860) 679-8350
> G&DB dept. fax : (860) 679-8345
>
http://genetics.uchc.edu/Faculty/Mohler/Mohler.html> P Think before you print
>